The lighting device comprises at least a metal sleeve with a female thread, a printed circuit board, a LED, a microswitch, a spring electrode, a battery and a rear metal cover.
照明装置至少包括带内螺纹的金属衬套、印刷电路板、发光二极管、微动开关、弹簧电极、电池及金属后盖。
Because walks silk thread cutting to walk the silk speed slowly to be slow, the electrode silk's vibration is also small, can suit the big taper the cutting processing.
由于慢走丝线切割的走丝速度较慢，电极丝的抖动也较小，能适合大锥度的切割加工。
Because walks silk thread cutting to walk the silk speed slowly to be slow, the electrode silk's vibration is also small, can suit the big taper the cutting processing.
由于慢走丝线切割的走丝速度较慢，电极丝的抖动也较小，能适合大锥度的切割加工。
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